2646316255444 has 12 divisors (see below), whose sum is σ = 4676905462068. Its totient is φ = 1310057552000.

The previous prime is 2646316255421. The next prime is 2646316255487. The reversal of 2646316255444 is 4445526136462.

It can be written as a sum of positive squares in 2 ways, for example, as 1869749942544 + 776566312900 = 1367388^2 + 881230^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2646316255391 and 2646316255400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275143477 + ... + 3275144284.

It is an arithmetic number, because the mean of its divisors is an integer number (389742121839).

Almost surely, 2^{2646316255444} is an apocalyptic number.

It is an amenable number.

2646316255444 is a deficient number, since it is larger than the sum of its proper divisors (2030589206624).

2646316255444 is a wasteful number, since it uses less digits than its factorization.

2646316255444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550287866 (or 6550287864 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 52.

The spelling of 2646316255444 in words is "two trillion, six hundred forty-six billion, three hundred sixteen million, two hundred fifty-five thousand, four hundred forty-four".